In actual production, the compressive strength of cartons is often reduced due to improper design and printing methods. Therefore, the following issues should be noted in the packaging design and printing of corrugated cartons.
1 Avoid full-page printing: When the corrugated cardboard box is full or printed around, in addition to the effect of the impression roller on the corrugated cardboard, the ink also has a wetting effect on the paper surface, which will reduce the compressive strength of the corrugated cardboard box . Therefore, the simpler the graphics printed on the corrugated box, the better, and try to avoid printing graphics on the entire surface of the box as much as possible, not to mention full printing.
2. Avoid banding (same as the mechanical direction of corrugated cardboard) printing: Some decorating designers have some horizontal gradient lines due to the lack of knowledge of the printing process. When printing, the printing pressure will crush the corrugation. Stress concentration will occur in this area of ​​the carton and is therefore the easiest to break.
3 Ink color should be eye-catching: Since the color of corrugated cardboard itself is quite dark, it is necessary to consider the use of inks with large color saturation and strong coloring power (such as big red) when selecting the printing color, otherwise the printed color and The color of hope will be very different.
4. Try to reduce the number of overprints: the more overprints, the more serious the compressive strength of the corrugated box decreases.
5 Avoid printing small text: As a corrugated box printing, the size of the font should be determined from the effect of promoting the product. Characters less than 2cm in size are almost indistinguishable at a distance of more than 5m, thus losing the significance of promoting and selling products.
6 Minimize the printing pressure: In order to ensure the printing quality of the carton and reduce the impact on the strength of the corrugated box, the printing pressure should be as small as possible, and the ink used should be quick-drying ink. Secondly, the distance between the printing surface and the horizontal indentation line should be kept at least 15mm, because the corrugated cardboard is not fully accepted by the pressed portion of the crimping disc of the laminating machine, otherwise it will affect the printing effect.
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